Question

How can you restrict the domain of the function f(x) = |x + 4| − 2 so the range of the inverse function, f -1(x), is [-4, ∞)?

Answer 1

require x in [-4, ∞)

Explanation:

The domain of a function is the range of the inverse function. If you want that range to be [-4, ∞), then the domain of the function must be [-4, ∞).

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The graph shows the original function with that restriction, and it also shows the inverse function to have the desired range.